Table 2.
Changing plasma B-type natriuretic peptidelevels affected by clinical factors.
| Clinical factor | n (%) | Before | After | Before vs. after | % Reduction | Interval (days) |
|---|---|---|---|---|---|---|
| Age | ||||||
| Below median | 105 (50.5) | 997.0±896.2 | 269.2±294.2 | p<0.01 | 65.2±26.1 | 35.0±35.1 |
| Above median | 103 (49.5) | 1091.6±1119.7 | 395.4±360.9 | p<0.01 | 57.8±22.0 | 50.0±71.8 |
| Below vs. above | — | NS | p<0.01 | — | p<0.01 | NS |
| Body mass index | ||||||
| Below median | 104 (50.0) | 1232.6±1198.2 | 414.2±397.0 | p<0.01 | 59.3±23.1 | 39.2±43.4 |
| Above median | 104 (50.0) | 855.1±741.2 | 249.2±230.4 | p<0.01 | 63.8±25.6 | 45.7±67.6 |
| Below vs. above | — | p<0.05 | p<0.01 | — | NS | NS |
| Creatinine | ||||||
| Below median | 103 (49.5) | 641.2±508.0 | 229.3±215.3 | p<0.01 | 59.6±24.4 | 45.8±65.8 |
| Above median | 105 (50.5) | 1438.7±1210.9 | 432.1±395.2 | p<0.01 | 63.4±24.4 | 39.2±46.3 |
| Below vs. above | — | p<0.01 | p<0.01 | — | NS | NS |
| Ejection fraction | ||||||
| Below median | 104 (50.0) | 1293.3±1190.3 | 359.6±377.7 | p<0.01 | 67.9±22.3 | 37.7±36.0 |
| Above median | 104 (50.0) | 794.4±717.4 | 303.8±283.1 | p<0.01 | 55.2±24.9 | 47.2±71.6 |
| Below vs. above | — | p<0.01 | NS | — | p<0.01 | NS |
Medians: Age, 72.5 years; BMI, 23.4 kg/m2; Cr, 1.2 mg/dl; EF, 39.2%.